COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bell Helicopter Textron 212 Series Helicopters
AD/BELL 212/39 Engine Fuel Switch 11/88
Applicability: Model 212 S/N 30680 through 31206, 32109 through 32142 and 32201 through
32262.
Requirement: Action in accordance with Bell ASB 212-88-52. Compliance: Prior to 1 January 1989.
Background: Reports received from the field reveal failure of the leaf spring within the engine fuel switch. A leaf spring failure has resulted in the engine fuel valve motoring to the closed position with associated engine flame out. The leaf spring failure was a result of a manufacturing operation during switch assembly on items with a date code 78XX or earlier.